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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 328
An Efficient Solitude Securing Ranked Keyword Search Technique
Asha Elsa George1, Bibin Varghese2, Smita C Thomas3
1P G Scholar, Dept. Of CSE, Mount Zion College of Engineering, Kadammanitta, Kerala, India
2Assistant Professor, Dept. Of CSE, Mount Zion College of Engineering, Kadammanitta, Kerala, India
3Research Scholar Vels University, Chennai, India
---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - As the volume of information in server farm is
encountering a huge development, so proprietor of
information want to re-appropriate delicate and significant
reports with the end goal of security monitoring. The archives
are put away in scrambled configuration so it is fundamental
to create productive huntfigurecontentprocedure. During the
time spent encryption connection between records is hidden
which prompts perform crumbling. A quality various leveled
bunching (QHC) strategy is proposed to help looking through
component and to meet quick looking inside cloud condition.
Multi catchphrase positioned search various leveled grouping
file (MRSE-HCI) engineering is utilized. For query output
check, least hash sub tree is utilized. Theproposedstrategyhas
a few favorable circumstances over customary technique in
archive's recovery and rank protection.
Key Words: Cloud Computing, Hierarchical Clustering,
Security, Cipher text search, Multi keyword search,
Ranked search.
1. INTRODUCTION
As we venture into advanced stage,terabyte'sofinformation
is created overall every day, so any information proprietor
who need to redistribute their information should be
venture up in a distributed computing. Associations and
enterprisers with huge measure of information like to
redistribute information so as to lessen information the
executives cost and storeroom. In spite of the fact that cloud
specialist organization's (CSP) guarantee their
administrations in regards to security, protection measure
security andprotectionaresignificantdeterrentsforestalling
for more extensive acknowledgments.
A traditional method for information encryption makes
server side applications, for example, looking on scrambled
information turns into danger obligation. In this manner,
present a strategy which can keep up and use this
relationship to speed the inquiry stage is interesting.
Distributed computing is the open source stage, expansive
system access, on interest capacity,fastflexibilityarethefew
favorable circumstances of distributed computing yet
security and protection are the serious issue. In existing
clarification information are put away in plain message
because of which informationisdefenselessforinterruption.
Access Control
Search Control
Data Owner
Data User
HierarchicalIndex
RelatedtopK
documents
Queryrequest
Server
Fig - 1: Architecture of cipher text search
A vector space model is utilized and each archive is spoken
to as a vector, which means each record can be viewed as a
point in a high dimensional space.
2. LITERATURE REVIEW
The benefit of capacity as an administration numerous
ventures are moving their profitable information to the
cloud starting with one area then onto the next, since it has
less cost, effectively versatile and can be gotten to from
anyplace whenever [1]. Here security as a parameter is
utilized to build up trust. Cryptography is one method for
building up certitude. Cryptographic strategy is utilized for
accessible encryption for giving security. Numerous
specialists have been taking a shot at creating productive
accessible encryption plans. This paper investigates some
powerful cryptographicstrategiesdependentoninformation
structures. CRSA and B-Tree is utilized to build thedegree of
security. It attempted to contraption the hunt on scrambled
information utilizing cloud stage [1].
Distributed computing is to give answer for information
redistribute and top notch information administrations.
More establishments, associations and companies are
dissecting the probability of having their applications,
information and their IT resources in cloud [2]. As the
information and there cloud's size builds, looking of the
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 329
applicable information is ordinary to be a danger. To defeat
this risk, search file is made to help in quicker search.
Notwithstanding, search Index creation and its estimation
has been intricate and tedious, prompting cloud-down time
there by thwarting the quickness in responding to
information demand for mission basic prerequisites. Focal
point of this paper is to clarify how reusability of pursuit list
is diminishing the unpredictability of hunt list com put
activity. Search record is proposed to be made utilizing
parameters like closeness importance,clientpositioningand
plan vigor. Client positioning ensures a keyword is utilized
every now and again in the transferred information [2].
The proposed framework characterized that the reusability
of inquiry list idea decreases cloud expending time while
keeping up the security utilizing accessible symmetric
encryption (SSE).The record mentioned from client is
brought from the cloud, utilizing Two-round accessible
encryption (TRSE) plot that supports top-k multi-keyword
recovery [2].
These days, more individuals are roused to re-appropriate
their nearby information to open cloud servers for
extraordinary comfort and decreased expenses in
information the board. Be that as it may, in light of securities
issues, delicate information oughttobescrambledbefore re-
appropriating, which resign conventional information use
like catchphrase based record recovery. A protected and
proficient multi keyword positioned search conspires over
scrambled information, which furthermore underpins
dynamic update tasks like cancellation and inclusion of
records [3].
A list tree dependent on vector space model is utilized to
give multi catchphrase search. Cosine closeness measure is
utilized to help exact positioning for item. "Voracious first
Traverse Strategy"searchcalculationisproposedtoimprove
search effectiveness. Likewise utilize different security
necessities in the known figure content risk model forgiving
insurance to the catchphrase. Trials on this present reality
dataset demonstrate the viability and proficiency of
proposed plot [3].
3. PROPOSED SYSTEM
The issue of keeping upthecozyconnection betweenvarious
plain reports over an encoded area has been search and
proposes a bunching strategy to take care of this issue. A
pursuit methodology is utilized to upgrade the rank
protection. This inquiryprocedurereceivesthebacktracking
calculation to comprehend any question where it happens.
By applying the Merkle hash tree and cryptographic mark is
utilized for tree structure confirmation and furthermore
gives a check system to guarantee the rightness and
culmination of query items.
4. PROBLEM DEFINITION
4.1 Threat Model
The adverse ability is concluded in two threat models.
Known cipher text model: In this model,Cloudservercanget
encrypted document collection, encrypted query keywords
and encrypted data index.
Known background model: In this model, cloud server
knows more information than that in known cipher text
model. Statistical background information of data set, such
as the document frequency and term frequency information
of a specific keyword, can be used by the cloud server to
launch a statistical attack to infer or identify specific
keyword in the query which further reveals the plain-text
content of documents.
4.2 Design Goals
Search efficiency: The time complexity of search time of
MRSE-HCI is less because the scheme needs to be
logarithmic against the size of data collectioninordertodeal
with the uncontrollable growth of document size in bigdata.
Retrieval accuracy: Retrieval precision is related to two
factors: the relevance between the queryandthedocuments
in result set, and the relevance ofdocumentsinthe resultset.
Integrity of the search result the correctness, completeness
and freshness of the document should be maintained.
5. SYSTEM ARCHITECTURE AND ALGORITHM
The MRSE-HCI architecture is illustrated as below. The data
owner is responsible for collecting documents, building
document index and also redistribute them in an encrypted
format to the cloud server. The cloud server provides a huge
storage space, and the resources needed by cipher text
search.

Secure Index
Hierarchical
clustering
Dictionary
Random
Numbers
Secret Key
Query
Trapdoor
Data User
Cloud Server
Data Owner
Cloud Server
Search Index
Top K documents
Fig – 2: MRSE-HCI architecture
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 330
After receiving a request from the data user,thecloudserver
searches the encrypted index, after getting the result then it
sends back to top k documents. The data user properly
chosen the number k and system aims to protecting data
from leaking information to the cloud server for improving
the efficiency of cipher text search. In this model, both the
data owner and the data user are trusted, because the cloud
server is semi-trusted, which is consistent with the
architecture. The cloud server will strictly follow the
predicted order of keywords and also try to get more
information about the data and the document index. Before
accessing the data, data owner needs to get authorization
from the data owner.
Until now many hierarchical clustering methods have been
proposed but all this method are not comparable to the
partition clustering method , K-mean and K-Medoid are
popular clustering algorithms but the size of k is fixed here.
So this paper proposed a quality hierarchical clustering
algorithm based on dynamic k-means.
Algorithm for Dynamic k-means
1. input the initial set of k cluster C
2. set the threshold THmin
3. while k s not stable
4. Generate a new set of cluster center C0 by k-means
5. For every cluster center C0, i
6. Get the minimum relevance score: min (Si)
7. If the min (Si) <THmin
8. Add new cluster center: k=k+1
9. go to while
10.Until k is steady.
Every cluster is checked whether its size exceeds TH or not.
If the size exceeds the cluster will split into child cluster
which is formed by dynamic k-means this procedure will be
repeated until the entire cluster meet the requirement of
maximum cluster size.
Algorithm Quality Hierarchical Clustering (QHC)
1. input document and set the size threshold TH.
2. build cluster ser C0 in firstlevel bydynamic k-means.
3. while there new cluster set Ci.
4. for every cluster Ci,j.
5. if the size Ci,j is bigger than TH.
6. split this cluster into sub-cluster Ci+1.
7. until all clusters match the size constraint.
The retrieved document has possibility to be wrongbecause
of unstable network and the data may damage due to
hardware or software failure, so verifyingtheauthenticity of
search result is critical issue in cloud environment.
Therefore, the minimum hash sub tree is designed to verify
the correctness and freshness of search result.
Algorithm building minimum hash sub tree (MHST)
1. build hast tree dependent on various leveled grouping
result.
2. for each leaf hub I.
3. calculate its hash esteem.
4. while not tree root.
5. for each non leaf hub j.
6. calculate its hash esteem.
7. construct hub (idj).
8. goto the upper level.
9. calculate tree root's hash esteem.
10. calculate the mark of hash esteem.
11. End
6. CONCLUSION
The maintaining of semantic relationship between different
pain documents has been explored. This method is used to
enhance the performance of the semantic search. MRSE-HCI
architecture is used for the transformation to the
requirements of data explosion, online informationretrieval
and the semantic search. Averifiablemechanismisproposed
for the guarantee correctness and completeness of search
results. To evaluate the search efficiency, accuracy and the
rank privacy using experiments. Multi keyword based
ranked search problem is not solved by using this proposed
method. It also brings an improvement in search efficiency,
rank security, and the relevance between retrieved
documents.
REFERENCES
[1] Chi Chen, Peisong Shen, Jiankun Hu, Song Guo, Zahir
Tari, Albert Y Zomaya, “An efficient privacy preserving
ranked keyword search method” in Proc. IEEE
Transactions on parallel and distributed systems vol-
27, 2016.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 331
[2] D. X. D. Song, D. Wagner and A. Perrig, “Practical
techniques for searches on encrypted data”, in Proc.
IEEE Symp. Security Priv, BERKELEY, CA, PP: 44-55,
2000.
[3] D. Boneh, G. Di. Crescenzo, R. Ostrovsky and G. Persiano,
“Public key encryption with keyword search”, in Proc.
EUROCRYPT, Interlaken, SWITZERLAND, pp: 506-522,
2004.

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Arifur Rahman
 

IRJET- An Efficient Solitude Securing Ranked Keyword Search Technique

  • 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 328 An Efficient Solitude Securing Ranked Keyword Search Technique Asha Elsa George1, Bibin Varghese2, Smita C Thomas3 1P G Scholar, Dept. Of CSE, Mount Zion College of Engineering, Kadammanitta, Kerala, India 2Assistant Professor, Dept. Of CSE, Mount Zion College of Engineering, Kadammanitta, Kerala, India 3Research Scholar Vels University, Chennai, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract - As the volume of information in server farm is encountering a huge development, so proprietor of information want to re-appropriate delicate and significant reports with the end goal of security monitoring. The archives are put away in scrambled configuration so it is fundamental to create productive huntfigurecontentprocedure. During the time spent encryption connection between records is hidden which prompts perform crumbling. A quality various leveled bunching (QHC) strategy is proposed to help looking through component and to meet quick looking inside cloud condition. Multi catchphrase positioned search various leveled grouping file (MRSE-HCI) engineering is utilized. For query output check, least hash sub tree is utilized. Theproposedstrategyhas a few favorable circumstances over customary technique in archive's recovery and rank protection. Key Words: Cloud Computing, Hierarchical Clustering, Security, Cipher text search, Multi keyword search, Ranked search. 1. INTRODUCTION As we venture into advanced stage,terabyte'sofinformation is created overall every day, so any information proprietor who need to redistribute their information should be venture up in a distributed computing. Associations and enterprisers with huge measure of information like to redistribute information so as to lessen information the executives cost and storeroom. In spite of the fact that cloud specialist organization's (CSP) guarantee their administrations in regards to security, protection measure security andprotectionaresignificantdeterrentsforestalling for more extensive acknowledgments. A traditional method for information encryption makes server side applications, for example, looking on scrambled information turns into danger obligation. In this manner, present a strategy which can keep up and use this relationship to speed the inquiry stage is interesting. Distributed computing is the open source stage, expansive system access, on interest capacity,fastflexibilityarethefew favorable circumstances of distributed computing yet security and protection are the serious issue. In existing clarification information are put away in plain message because of which informationisdefenselessforinterruption. Access Control Search Control Data Owner Data User HierarchicalIndex RelatedtopK documents Queryrequest Server Fig - 1: Architecture of cipher text search A vector space model is utilized and each archive is spoken to as a vector, which means each record can be viewed as a point in a high dimensional space. 2. LITERATURE REVIEW The benefit of capacity as an administration numerous ventures are moving their profitable information to the cloud starting with one area then onto the next, since it has less cost, effectively versatile and can be gotten to from anyplace whenever [1]. Here security as a parameter is utilized to build up trust. Cryptography is one method for building up certitude. Cryptographic strategy is utilized for accessible encryption for giving security. Numerous specialists have been taking a shot at creating productive accessible encryption plans. This paper investigates some powerful cryptographicstrategiesdependentoninformation structures. CRSA and B-Tree is utilized to build thedegree of security. It attempted to contraption the hunt on scrambled information utilizing cloud stage [1]. Distributed computing is to give answer for information redistribute and top notch information administrations. More establishments, associations and companies are dissecting the probability of having their applications, information and their IT resources in cloud [2]. As the information and there cloud's size builds, looking of the
  • 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 329 applicable information is ordinary to be a danger. To defeat this risk, search file is made to help in quicker search. Notwithstanding, search Index creation and its estimation has been intricate and tedious, prompting cloud-down time there by thwarting the quickness in responding to information demand for mission basic prerequisites. Focal point of this paper is to clarify how reusability of pursuit list is diminishing the unpredictability of hunt list com put activity. Search record is proposed to be made utilizing parameters like closeness importance,clientpositioningand plan vigor. Client positioning ensures a keyword is utilized every now and again in the transferred information [2]. The proposed framework characterized that the reusability of inquiry list idea decreases cloud expending time while keeping up the security utilizing accessible symmetric encryption (SSE).The record mentioned from client is brought from the cloud, utilizing Two-round accessible encryption (TRSE) plot that supports top-k multi-keyword recovery [2]. These days, more individuals are roused to re-appropriate their nearby information to open cloud servers for extraordinary comfort and decreased expenses in information the board. Be that as it may, in light of securities issues, delicate information oughttobescrambledbefore re- appropriating, which resign conventional information use like catchphrase based record recovery. A protected and proficient multi keyword positioned search conspires over scrambled information, which furthermore underpins dynamic update tasks like cancellation and inclusion of records [3]. A list tree dependent on vector space model is utilized to give multi catchphrase search. Cosine closeness measure is utilized to help exact positioning for item. "Voracious first Traverse Strategy"searchcalculationisproposedtoimprove search effectiveness. Likewise utilize different security necessities in the known figure content risk model forgiving insurance to the catchphrase. Trials on this present reality dataset demonstrate the viability and proficiency of proposed plot [3]. 3. PROPOSED SYSTEM The issue of keeping upthecozyconnection betweenvarious plain reports over an encoded area has been search and proposes a bunching strategy to take care of this issue. A pursuit methodology is utilized to upgrade the rank protection. This inquiryprocedurereceivesthebacktracking calculation to comprehend any question where it happens. By applying the Merkle hash tree and cryptographic mark is utilized for tree structure confirmation and furthermore gives a check system to guarantee the rightness and culmination of query items. 4. PROBLEM DEFINITION 4.1 Threat Model The adverse ability is concluded in two threat models. Known cipher text model: In this model,Cloudservercanget encrypted document collection, encrypted query keywords and encrypted data index. Known background model: In this model, cloud server knows more information than that in known cipher text model. Statistical background information of data set, such as the document frequency and term frequency information of a specific keyword, can be used by the cloud server to launch a statistical attack to infer or identify specific keyword in the query which further reveals the plain-text content of documents. 4.2 Design Goals Search efficiency: The time complexity of search time of MRSE-HCI is less because the scheme needs to be logarithmic against the size of data collectioninordertodeal with the uncontrollable growth of document size in bigdata. Retrieval accuracy: Retrieval precision is related to two factors: the relevance between the queryandthedocuments in result set, and the relevance ofdocumentsinthe resultset. Integrity of the search result the correctness, completeness and freshness of the document should be maintained. 5. SYSTEM ARCHITECTURE AND ALGORITHM The MRSE-HCI architecture is illustrated as below. The data owner is responsible for collecting documents, building document index and also redistribute them in an encrypted format to the cloud server. The cloud server provides a huge storage space, and the resources needed by cipher text search.  Secure Index Hierarchical clustering Dictionary Random Numbers Secret Key Query Trapdoor Data User Cloud Server Data Owner Cloud Server Search Index Top K documents Fig – 2: MRSE-HCI architecture
  • 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 330 After receiving a request from the data user,thecloudserver searches the encrypted index, after getting the result then it sends back to top k documents. The data user properly chosen the number k and system aims to protecting data from leaking information to the cloud server for improving the efficiency of cipher text search. In this model, both the data owner and the data user are trusted, because the cloud server is semi-trusted, which is consistent with the architecture. The cloud server will strictly follow the predicted order of keywords and also try to get more information about the data and the document index. Before accessing the data, data owner needs to get authorization from the data owner. Until now many hierarchical clustering methods have been proposed but all this method are not comparable to the partition clustering method , K-mean and K-Medoid are popular clustering algorithms but the size of k is fixed here. So this paper proposed a quality hierarchical clustering algorithm based on dynamic k-means. Algorithm for Dynamic k-means 1. input the initial set of k cluster C 2. set the threshold THmin 3. while k s not stable 4. Generate a new set of cluster center C0 by k-means 5. For every cluster center C0, i 6. Get the minimum relevance score: min (Si) 7. If the min (Si) <THmin 8. Add new cluster center: k=k+1 9. go to while 10.Until k is steady. Every cluster is checked whether its size exceeds TH or not. If the size exceeds the cluster will split into child cluster which is formed by dynamic k-means this procedure will be repeated until the entire cluster meet the requirement of maximum cluster size. Algorithm Quality Hierarchical Clustering (QHC) 1. input document and set the size threshold TH. 2. build cluster ser C0 in firstlevel bydynamic k-means. 3. while there new cluster set Ci. 4. for every cluster Ci,j. 5. if the size Ci,j is bigger than TH. 6. split this cluster into sub-cluster Ci+1. 7. until all clusters match the size constraint. The retrieved document has possibility to be wrongbecause of unstable network and the data may damage due to hardware or software failure, so verifyingtheauthenticity of search result is critical issue in cloud environment. Therefore, the minimum hash sub tree is designed to verify the correctness and freshness of search result. Algorithm building minimum hash sub tree (MHST) 1. build hast tree dependent on various leveled grouping result. 2. for each leaf hub I. 3. calculate its hash esteem. 4. while not tree root. 5. for each non leaf hub j. 6. calculate its hash esteem. 7. construct hub (idj). 8. goto the upper level. 9. calculate tree root's hash esteem. 10. calculate the mark of hash esteem. 11. End 6. CONCLUSION The maintaining of semantic relationship between different pain documents has been explored. This method is used to enhance the performance of the semantic search. MRSE-HCI architecture is used for the transformation to the requirements of data explosion, online informationretrieval and the semantic search. Averifiablemechanismisproposed for the guarantee correctness and completeness of search results. To evaluate the search efficiency, accuracy and the rank privacy using experiments. Multi keyword based ranked search problem is not solved by using this proposed method. It also brings an improvement in search efficiency, rank security, and the relevance between retrieved documents. REFERENCES [1] Chi Chen, Peisong Shen, Jiankun Hu, Song Guo, Zahir Tari, Albert Y Zomaya, “An efficient privacy preserving ranked keyword search method” in Proc. IEEE Transactions on parallel and distributed systems vol- 27, 2016.
  • 4. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 01 | Jan 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 331 [2] D. X. D. Song, D. Wagner and A. Perrig, “Practical techniques for searches on encrypted data”, in Proc. IEEE Symp. Security Priv, BERKELEY, CA, PP: 44-55, 2000. [3] D. Boneh, G. Di. Crescenzo, R. Ostrovsky and G. Persiano, “Public key encryption with keyword search”, in Proc. EUROCRYPT, Interlaken, SWITZERLAND, pp: 506-522, 2004.